To be more specific, this is what you want. Consider buying the pilot pack too if you're going to do a bunch of .45's. I have used this one on several .45 Colts with excellent results. If you are just doing one gun, you might want to send it to CAS at
www.cylindersmith.com. He does excellent work at a very reasonable price.
http://www.brownells.com/gunsmith-to...-prod7700.aspx